EP2534725A1 - Wiederaufladbare elektrochemische zelle - Google Patents
Wiederaufladbare elektrochemische zelleInfo
- Publication number
- EP2534725A1 EP2534725A1 EP11703396A EP11703396A EP2534725A1 EP 2534725 A1 EP2534725 A1 EP 2534725A1 EP 11703396 A EP11703396 A EP 11703396A EP 11703396 A EP11703396 A EP 11703396A EP 2534725 A1 EP2534725 A1 EP 2534725A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery cell
- cell according
- sulfur dioxide
- cell
- mmol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000003792 electrolyte Substances 0.000 claims abstract description 46
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000001301 oxygen Substances 0.000 claims abstract description 26
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 26
- 150000003839 salts Chemical class 0.000 claims abstract description 23
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims description 49
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 229910052744 lithium Inorganic materials 0.000 claims description 11
- 229910052717 sulfur Inorganic materials 0.000 claims description 11
- 239000011593 sulfur Substances 0.000 claims description 11
- -1 tetrachloroaluminate Chemical compound 0.000 claims description 11
- 239000007795 chemical reaction product Substances 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 150000001340 alkali metals Chemical class 0.000 claims description 6
- XTHPWXDJESJLNJ-UHFFFAOYSA-M chlorosulfate Chemical compound [O-]S(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-M 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 6
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- 150000003624 transition metals Chemical class 0.000 claims description 3
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 150000004820 halides Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 230000002687 intercalation Effects 0.000 claims description 2
- 238000009830 intercalation Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910001507 metal halide Inorganic materials 0.000 claims description 2
- 150000005309 metal halides Chemical class 0.000 claims description 2
- 229910001463 metal phosphate Inorganic materials 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229940000489 arsenate Drugs 0.000 claims 1
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 239000011572 manganese Substances 0.000 claims 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 claims 1
- 235000010269 sulphur dioxide Nutrition 0.000 abstract 3
- 239000004291 sulphur dioxide Substances 0.000 abstract 3
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 23
- 229910018091 Li 2 S Inorganic materials 0.000 description 20
- 239000010439 graphite Substances 0.000 description 20
- 229910002804 graphite Inorganic materials 0.000 description 20
- 239000008151 electrolyte solution Substances 0.000 description 12
- GMKDNCQTOAHUQG-UHFFFAOYSA-L dilithium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane Chemical compound [Li+].[Li+].[O-]S([O-])(=O)=S GMKDNCQTOAHUQG-UHFFFAOYSA-L 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 6
- 230000002452 interceptive effect Effects 0.000 description 6
- 230000007774 longterm Effects 0.000 description 6
- XRZCZQUCDBWELQ-UHFFFAOYSA-L [Li+].[Li+].[O-]S(=O)S([O-])=O Chemical compound [Li+].[Li+].[O-]S(=O)S([O-])=O XRZCZQUCDBWELQ-UHFFFAOYSA-L 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 229910018068 Li 2 O Inorganic materials 0.000 description 4
- 239000011149 active material Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000007772 electrode material Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 4
- 229910001947 lithium oxide Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- 150000003431 steroids Chemical class 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- SGYOHBMMKNRZRP-UHFFFAOYSA-M [Li+].[O-]S(Cl)(=O)=O Chemical compound [Li+].[O-]S(Cl)(=O)=O SGYOHBMMKNRZRP-UHFFFAOYSA-M 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 150000001642 boronic acid derivatives Chemical class 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 238000002848 electrochemical method Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 229910010238 LiAlCl 4 Inorganic materials 0.000 description 1
- 229910013458 LiC6 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- QTHKJEYUQSLYTH-UHFFFAOYSA-N [Co]=O.[Ni].[Li] Chemical compound [Co]=O.[Ni].[Li] QTHKJEYUQSLYTH-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminum chloride Substances Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000012482 calibration solution Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000003915 cell function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical group C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000003541 multi-stage reaction Methods 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N sulfurochloridic acid Chemical compound OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0563—Liquid materials, e.g. for Li-SOCl2 cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0473—Filling tube-or pockets type electrodes; Applying active mass in cup-shaped terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0473—Filling tube-or pockets type electrodes; Applying active mass in cup-shaped terminals
- H01M4/0478—Filling tube-or pockets type electrodes; Applying active mass in cup-shaped terminals with dispersions, suspensions or pastes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
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- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- H01M4/64—Carriers or collectors
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- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
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- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/002—Inorganic electrolyte
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the invention relates to a rechargeable electrochemical cell having a positive electrode, a negative electrode and an electrolyte containing sulfur dioxide (S0 2 ) and a conductive salt of the active metal of the cell.
- the charge transport required for charging and discharging the cell is based on the mobility of the ions of a conducting salt in the electrolyte, which may in particular be liquid or gel.
- S0 2 -containing electrolytes hereinafter "S0 2 -electrolytes"
- the S0 2 contributes to the mobility of the ions of the conducting salt, which cause this charge transport.
- S0 2 is a solvent for the conductive salt.
- the electrolyte may contain, in addition to the S0 2 another solvent that contributes to the mobility of the ions of the conductive salt.
- These may be inorganic solvents (for example, sulfury chloride, thionyl chloride), organic solvents and ionic liquids, which may be used singly or in admixture.
- an electrolytic solution is used, which contains S0 2 not only as an additive in low concentration, but in which the mobility of the ions of the conductive salt predominantly, more preferably substantially completely, is ensured by the S0 2 .
- the present invention is directed to battery cells having the following features:
- the active metal is preferably an alkali metal, in particular lithium or sodium.
- the conductive salt is preferably a tetrahaloaluminate, in particular a tetrachloroaluminate of the alkali metal, for example LiAlCl.
- the electrolyte preferably contains at least one mole of the conducting salt per 22 moles of S0 2 .
- the preferred maximum molar ratio is 1 mol of conductive salt per 0.5 mol of SO 2 .
- Active metals which are preferred in the context of the invention are, in addition to the alkali metals, also the alkaline earth metals and the metals of the second subgroup of the Periodic Table, in particular calcium and zinc.
- Particularly suitable conductive salts are their halides, oxalates, borates, phosphates, arsenates and gallates.
- the positive electrode preferably contains (for storing the active metal) a metal oxide or a metal phosphate, in particular in the form of an intercalation compound.
- the metal of the oxide or phosphate is preferably a transition metal of atomic numbers 22 to 28, in particular cobalt, manganese, nickel or iron.
- binary or ternary oxides or phosphates containing two or three different transition metals in the lattice structure, such as, for example, lithium-nickel-cobalt oxide are also of practical significance.
- the invention can also be used in conjunction with other positive electrodes, for example based on a metal halide such as CuCl 2 .
- the negative electrode is preferably designed as an insertion electrode.
- This term generally refers to electrodes that contain the active metal in its interior such that it is ready to be exchanged with the electrolyte during cell loading and unloading.
- negative electrodes containing graphite, wherein in the interior of the graphite when charging the cell active metal is taken up lithium ion cells. During normal cell loading, there is no deposition of active metal on the electrode surface.
- the invention also relates to cells in which the active metal is deposited metallically on the negative electrode (lithium metal cells).
- the negative electrode particularly preferably contains a porous deposition layer in whose pores the active material is taken up during charging.
- a porous deposition layer in whose pores the active material is taken up during charging.
- Such an electrode is also referred to as an insertion electrode (in the broader sense).
- a glass fabric can be used which preferably has a pore diameter of at least 6 ⁇ m.
- the required electrical separation of the positive and the negative electrode can be realized either by means of a separator or by means of an insulator.
- a separator is a structure that prevents the passage of metallic lithium deposited on the negative electrode to the surface of the positive electrode.
- separators made of polyethylene (PE), polypropylene (PP) or ethylene tetrafluoroethylene (ETFE) can also be used.
- chargers provided for such cells should be designed so that overcharging is avoided.
- a structure is referred to which causes electrical separation of positive and negative electrodes, but is not designed so that the passage of metallic lithium to the surface of the positive electrode is prevented.
- the insulator preferably serves simultaneously as a deposition layer.
- the invention has for its object to provide battery cells with a S0 2 -Elek- trolyte available, which are characterized by improved properties, especially in terms of long-term operation with a variety of charging and discharging cycles.
- an electrochemical rechargeable battery cell having a housing, a positive electrode, a negative electrode and an electrolyte containing sulfur dioxide and a conductive salt of the active metal of the cell, characterized in that the total amount of oxides contained in the cell , which can react with sulfur dioxide with reduction of the sulfur dioxide, is at most 10 mmol per Ah theoretical capacity of the cell.
- oxygen-containing impurities can significantly impair the long-term function of battery cells with an electrolyte containing S0 2 .
- These are oxygenated compounds that can react with sulfur dioxide to reduce sulfur dioxide, that is, under conditions known in the art practical operation of the battery cell are capable of such a reaction.
- the abbreviation "Störoxide” is used below without limiting the generality.
- the reactions in question are often strongly inhibited kinetically, so that they only run for a very long time. However, they interfere with the battery function, considering the fact that batteries have to remain functional for a long time (several years).
- a cell tested in the invention in SubC format has a theoretical discharge capacity of 2.3 Ah.
- the function of such a cell can already be affected by the presence of about 5 to 10 mmol of stearoxide so that its capacity drops to zero during long-term use over many charging and discharging cycles.
- the theoretical capacity of the cell is determined by its electrodes, the theoretical capacity of the cell being understood in the context of the invention as the theoretical capacity of the positive electrode.
- the invention preferably relates to cells having an electrolyte whose SC> 2 content is so high that the mobility of the conducting salt ions is predominantly or even substantially entirely based on the presence of the SO 2 .
- the minimum amount of SO 2 per Ah of theoretical capacity of the cell is preferably 1 mmol, wherein, based in each case on the theoretical capacity of the cell, a minimum amount of 5 mmol is particularly preferred and a minimum amount of 10 mmol is even more preferred.
- a typical oxygen-containing impurity on the active material of a negative carbon electrode is C 6 0. It reacts with the LiC 6 of the electrode and the SO 2 of the electrolyte with consumption of six electrons (e) according to the following reaction equation: (1) 6 LiC 6 + C e O + 2 S (+ IV) 0 2 - * 7 C 6 + Li 2 S (+ II) 2 0 3 + 2 Li 2 O; Charge consumption 6 e "
- the reaction products are carbon (C 6 ), lithium thiosulfate (Li 2 S 2 0 3 ) and lithium oxide (Li 2 0).
- the parenthesized Roman numeral indicates the oxidation number of the sulfur in each compound.
- the oxidation number of the sulfur decreases by 2.
- the sulfur dioxide is thus reduced in the formation of lithium thiosulfate.
- the lithium oxide resulting from reaction equation (1) reacts with the Lewis acid aluminum chloride (AICI 3 ), which is usually contained in the electrolyte by autodissociation of the conductive salt, to aluminum oxychloride (AlOCl) and lithium chloride (LiCl). But even the neutral form of the conductive salt (LiAICU) can lead to the solution of Li 2 0 and further reaction with Li 2 S 2 0:
- AICI 3 Lewis acid aluminum chloride
- AlOCl aluminum oxychloride
- LiCl lithium chloride
- lithium thiosulfate (L12S2O3) and lithium oxide (Li 2 0) is additionally taken into account. If the Li 2 0 does not dissolve, the reaction (2) can not take place and thus the subsequent reactions (3a) and (4a) do not take place. The charge consumption is consequently reduced to 6e " from the reaction (1), which is irreversibly consumed per mmol of C 6 0 162 mAh charge.
- a typical oxygen-containing impurity on the positive electrode active material is a hydroxide which forms on the surface thereof in the case of a lithium metal oxide electrode of the general formula LiMeO 2 , for example, LiMeO (OH) 2 . It reacts with AICI3 present in the electrolyte according to the following reaction equation to aluminum oxychloride, a chloride of the metal Me, HCl and LiCl:
- LiMeO (OH) 2 leads to the consumption of 12 molecules S0 2 and 24 e " , whereby (with 3 molecules AlOCI as intermediate) 6 molecules Li 2 S 2 0 3 and 2 molecules HCl are formed equivalent, based on 1 mmol LiMeO (OH) 2 an amount of charge of 702 mAh.
- the lithium is a molecule LiMeO (OH) 2 is no longer as the active metal are available. This results in a further loss of capacity of 27 mAh per mmol LiMeO (OH 2 ) In total, a volume of 729 mAh is lost per mmol of LiMeO (OH) 2 when the Complete reactions. Since each mole of oxide contains 3 moles of oxygen, this corresponds to 243 mAH per mole of oxygen.
- oxygen-containing impurities arise during the preparation of the electrolyte solution or by reaction of the electrolyte solution with other components of the cell (for example housing, separator, current conductor from and to the electrodes). They are also typically present as acidic (AlOCl) or neutral (LiAlOCl 2 ) alumina dichlorides and lead to the following reactions, with the reaction equations (3c) and (4c) again corresponding to the moles (3a) and (4a).
- the charging voltage increases. From a certain, dependent on the cell type voltage, the increase of the charging voltage leads to the decomposition of the electrolyte solution. If this contains, for example, a tetrachloroaluminate as conductive salt, chlorine (Cl 2 ) is formed as an overcharge product at the positive electrode. This leads to further reactions in which the lithium thiosulfate formed according to the above-described reactions reacts further with chlorine diffused to the negative electrode and the LiC ⁇ of the negative electrode through several reaction stages. The sulfur is disproportionated until it has reached the oxidation number -II in one end product and the oxidation number + VI in the other end product.
- Examples of such end products with oxidation number -II are metal sulfides (eg Li 2 S (" " ) or Al 2 S ")) 3)
- An example of a final product with the oxidation number + VI is lithium chlorosulfonate (LiS0 3 Cl).
- a characteristic reaction product formed upon overcharging in the presence of extraneous oxides is a chlorosulfonate of the active metal, in a Uthium cell lithium chlorosulfonate.
- the amount of electrical charge needed for these reactions is supplied by the cell and is no longer available as usable battery capacity.
- the above-mentioned stoichiometries are examples of any type of extraneous oxides (as defined above) located on or in the materials of the cell.
- the positive electrode may contain, for example, stub oxides in the form of various oxygen-containing compounds located on the surface of the electrode material. These include hydroxides (including water), oxide dihydroxides, carbonates, borates, etc.
- formulation C 6 O represents a simplified representation of oxygen bound to a negative carbon electrode.
- oxygen is in covalently bonded form, for example as ketones, aldehydes, carbonyls, alcohols, epoxides, carboxylic acids, etc.
- the oxygen may also in the form of adsorbed water or adsorbed metal hydroxide or the like.
- a sulfur-oxygen compound is formed in which the sulfur has an oxidation state of at most 3, eg, a thiosulfate of the active metal.
- Overload operation typically produces a sulfur-oxygen compound which also contains a halogen and where the oxidation state of sulfur is + VI.
- a chlorosulfonate of the active metal of the cell is formed.
- the stoichiometric oxides contained in the electrolyte cause the relatively least capacity loss per mmole. From the numerical value of about 100 mAh / mmol, it is found that upon complete reaction of the steroxide contained in the electrolyte (without the described Kochladerepressen), the capacity of the cell drops to zero, if the electrolyte more than about 10 mmol Störoxid per Ah theoretical capacity contains the cell and no further Störoxide in the cell are present. In practice, however, it should be borne in mind that, depending on the field of application of the battery, operating conditions may prevail in which the interfering oxides react only partially.
- the cell therefore contains at most 5 mmol, preferably at most 2 mmol, more preferably at most 1 mmol, even more preferably at most 0.5 mmol and most preferably at most 0.1 mmol of steroxide per Ah theoretical capacity of the cell.
- the electrolyte contains very small amounts of O 2 " , wherein the fluctuation of the curve is within the error limit.
- FIG. It refers to electrochemical measurements made on an E-cell in three-electrode arrangements. Shown is the electrical voltage U in volts as a function of the time t in hours during the first charging of two different negative graphite electrodes. For the first electrode, commercial graphite was used without additional treatment. The second electrode was treated for 90 hours at 1000 ° C in an oven under argon blanket to remove the stub oxides.
- the cell was charged with both electrodes at a constant current of 11 mA.
- the resulting voltage-time diagram is designated A for the untreated electrode and B for the pretreated electrode.
- overcoat layers are formed on the graphite, namely a lithium dithionite overlay advantageous for cell function and an undesirable lithium thiosulfate overcoat, the formation of which is due to the presence of extraneous oxides. From other experiments it is known that the overcoat is completed at a voltage of 0.2 volts. Figure 2 shows that this voltage value for the treated electrode is reached after 0.2 hours and for the untreated electrode after 0.3 hours. Since the current flow was constant 11 mA, a consumed charge of 2.2 mAh is calculated for the pretreated, substantially stoichydroxide-free electrode and 3.3 mAh for the untreated electrode.
- FIG. 3 shows measurement results which were measured by means of FTIR spectroscopy (Fourier transform infrared spectroscopy). Shown is the FTIR spectrum of an electrolyte of the composition LiAlCl 4 ⁇ 1.5 S0 2 , which was taken from a cell after about 550 charging and discharging cycles (solid line A) compared to the same S0 2 -Electropholyten, however not yet gezykeit became (thin line B with crosses). The absorbance A is plotted in arbitrary units versus the wave number k in cm "1.
- the content of extraneous oxides on the positive electrode material can be reduced by annealing at higher temperatures, whereby both the entire electrode (active material and current collector) and only the active material isolated can be subjected to the temperature treatment.
- a high temperature is advantageous, but it must not be so high that (especially by reactions of a binder used in the electrode material) new Störoxide arise.
- carbon formed by reduction of the binder at excessively high temperatures reduces the lithium metal oxide to metal oxide to form lithium oxide and carbon dioxide:
- the negative electrode can be freed by a temperature treatment so much of Störoxiden that the content is below the critical limit.
- the starting material graphite or the entire electrode including current conductor is heated to more than 1000 ° C under an inert gas atmosphere.
- the resulting virtually oxide-free material has a completely different consistency compared to normal graphite. It flows like a liquid. Therefore, a special procedure is required in the production of the oxide-free graphite negative electrode.
- another carbon material eg graphite, which was annealed at 500 ° C, in a concentration of 15%
- electrolyte solution eg graphite, which was annealed at 500 ° C, in a concentration of 15%
- One way to reduce the content of Störoxiden in a S0 2 -Elektrolytaims is the drying of the starting material lithium chloride (LiCl).
- the salt is heated for example in an argon atmosphere for 12 hours at 450 ° C.
- Figure 5 shows the behavior of two cells with different Störoxidlock.
- the capacity C obtained in each case during unloading (in percent of the initial capacity) is plotted against the number of cycles N.
- Curve A shows the cycling behavior of a cell with about 0.25 mmoles of oxygen contained in oxides of oxygen on the positive electrode, about 0.25 mmoles of oxygen contained in oxides of strontium in the electrolyte, and about 1.1 mmoles of oxygen contained in oxides of nitrogen on the negative electrode.
- the total content of oxygen in Störoxiden was thus 1, 6 mmol (each per Ah theoretical capacity of the cell).
- Curve B describes the Zykel a cell with about 12 mmol oxygen contained in Störoxiden per Ah theoretical capacity of the cell.
- the cell with fewer extraneous oxides still has a useful capacity of 50% after one thousand cycles, while the capacity of the cell with the higher level of oxide content drops rapidly to very low levels in less than one hundred cycles.
- the cell with the low Störoxidgehalt had after the formation of coating layer of Lithiumdithion 'rt a capacity of 1125 mAh. After 1000 cycles, the capacity was about 416 mAh, the capacity loss thus 709 mAh. This value is in good agreement with the loss of capacity in terms of measurement accuracy, which can be calculated on the basis of the considerations outlined above.
Abstract
Description
Claims
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US20130040188A1 (en) * | 2011-08-12 | 2013-02-14 | Fortu Intellectual Property Ag | Rechargeable electrochemical battery cell |
EP2608309A1 (de) | 2011-12-21 | 2013-06-26 | Fortu Intellectual Property AG | Batteriemodul mit Batteriemodulgehäuse und Batteriezellen |
TWI473320B (zh) * | 2012-01-06 | 2015-02-11 | Univ Nat Taiwan Science Tech | 鋰離子電池其陽極保護層之結構及製造方法 |
KR20130118716A (ko) * | 2012-04-20 | 2013-10-30 | 주식회사 엘지화학 | 전극 조립체, 이를 포함하는 전지셀 및 디바이스 |
KR101387424B1 (ko) | 2012-11-22 | 2014-04-25 | 주식회사 엘지화학 | 전폭의 길이가 동일하고 전장의 길이가 상이한 전극 유닛들로 이루어진 전극 조립체, 이를 포함하는 전지셀 및 디바이스 |
JP6303260B2 (ja) * | 2012-12-06 | 2018-04-04 | 株式会社村田製作所 | 正極活物質およびその製造方法、正極、電池、電池パック、電子機器、電動車両、蓄電装置ならびに電力システム |
CN103887479B (zh) * | 2012-12-19 | 2017-08-25 | 株式会社杰士汤浅国际 | 电极板、层叠型电极组、电池及圆筒形电池 |
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